Bremen I is an electoral constituency (German: Wahlkreis) represented in the Bundestag.

Originally, the constituency comprised the borough of Ost and the Ortsteile of Huckelriede, Habenhausen, and Arsten.

In the 1965 through 1994 elections, it comprised the borough of Ost, the Stadtteil of Obervieland, and the Ortsteile of Huckelriede and Ostertor.

The constituency has been held continuously by the Social Democratic Party (SPD) since its creation.

Yellow background denotes an electorate win by a list member, or other incumbent.

Yellow background denotes an electorate win by a list member, or other incumbent.

Yellow background denotes an electorate win by a list member, or other incumbent.

Yellow background denotes an electorate win by a list member, or other incumbent.